20731-74-2Relevant articles and documents
Selective and efficient syntheses of phototoxic 2,2':5',2''-terthiophene derivatives bearing a functional substituent in the 3'- or the 5-position
Rossi,Carpita,Ciofalo,Lippolis
, p. 8443 - 8460 (1991)
Efficient and selective procedures have been developed to prepare on a medium scale several phototoxic 2,2':5',2''-terthiophene derivatives of general formula 2 and 3, which are characterized by a functional substituent in the 3'- or the 5-position. Most of these procedures, which are based on the construction of the 2,2':5',2''-terthiophene moiety and involve palladium-mediated carbon-carbon bond forming reactions, allow to overcome synthetic difficulties that may be found in the synthesis of compounds 2 and 3 starting from 2,2':5',2''-terthiophene (1a).
A containing oxygen race element and five fused ring conjugated molecule with the synthetic method of derivative thereof and use
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Paragraph 0050, (2018/04/21)
The invention relates to an oxygen family element-containing penta-condensed ring conjugated molecule and its derivative synthetic method and a purpose thereof. A structure of the oxygen family element-containing penta-condensed ring conjugated molecule is shown as follows, and a structure of the derivative of the oxygen family element-containing penta-condensed ring conjugated molecule is shown as follows.
Thiolate chemistry: A powerful and versatile synthetic tool for immobilization/functionalization of oligothiophenes on a gold surface
Tran, Truong Khoa,Bricaud, Quentin,Ocafrain, Maitena,Blanchard, Philippe,Roncali, Jean,Lenfant, Stephane,Godey, Sylvie,Vuillaume, Dominique,Rondeau, David
supporting information; experimental part, p. 5628 - 5640 (2011/06/21)
The synthesis and characterization of a series of quaterthiophenes (4Ts) with thiolate groups protected with 2-cyanoethyl (CNE), 2-trimethylsilylethyl (TMSE), and acetyl (Ac) groups are described. Sequential cleavage of these different protecting groups allows for the preparation of 4Ts derivatized with ferrocene and/or alkanethiol chains. The electrochemical behavior of these compounds has been analyzed in solution by cyclic voltammetry (CV). A ferrocene-derivatized dithiol 4T 14 and a dithiol 4T 15 with two TMSE-protected thiolate groups have been immobilized on a gold surface as monolayers that have been characterized by CV, ellipsometry, contact-angle measurement, and X-ray photoelectron spectroscopy (XPS). The results show that molecules 14 and 15 are doubly grafted with a horizontal orientation of the conjugated system relative to the surface. Furthermore, application of the deprotection/alkylation sequence of the remaining protected thiolate groups on a monolayer of 15 allows for efficient post-functionalization.